Refrigerating an unopened vial won't hurt it, but it's not required
However, if you are having long term struggles with absorbing B vitamins, then an injection could be a good last resort option
The vitamin is injected deep into the muscle, where it can slowly release into your bloodstream
Investigational applications may include studies involving adipocyte differentiation, lipid metabolism, mitochondrial function, energy balance regulation, and controlled biochemical analysis of cellular metabolic responses under standardized experimental conditions
2.5 mg per injection 25 units Frequency Daily (5 on / 2 off) Weekly Total ~12.5 mg Cycle Length 4 6 weeks ~12.5 mg/wk 5 mg per injection 15 units Frequency Daily (5 on / 2 off) Weekly Total ~25 mg Cycle Length 6 8 weeks ~25 mg/wk 5 10 mg per injection 15 30 units Frequency Daily (5 on / 2 off) Weekly Total 25 50 mg Cycle Length 6 8 weeks 25 50 mg/wk Weekly Schedule All protocols follow a 5-on / 2-off injection pattern